I find MM sometimes omits to write edits to tags, with no warning of e.g. file locked by other program. I.e. I make an edit, check that the library shows it, but I find that the file itself does not e.g. when viewed under the tree My Computer. Even though the occurence is rare, the result is lost user data, so for me this is a serious problem!
Have others found this?
PS Here's an example:
1 Verify [X] Update tags ...

2 Edit Album tags, and verify in Library

3 See in My Computer that tag edits failed
Tracked at
http://www.ventismedia.com/mantis/view.php?id=5999